Botanicare BCNBGZAOZ 1-Ounce Botanicare ZHO Root Inoculant Rev up your rhizosphere with botanicare's new biological inoculants, zho Zho contains revolutionary supercharged endomychorrizal and trichoderma fungi that naturally build a microbial system in and around plant roots Significantly improving a plants growth, vigor and production ZHO contains special amino acids designed to intensify the rhizoidal activity that ZHO ignites Apply 1/4 teaspoon of zho twice during your grow cycle and your plant's vitality and development will exceed your expectations